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Cult horror director Renato Polselli filmed this extremely sleazy mondo-style documentary under the pseudonym "Ralph Brown." Isarco Ravaioli portrays a supposedly well-known sex researcher who lectures the audience on the theories of Freud and Krafft-Ebing while introducing fairly graphic depictions of orgies, rape, homosexuality, prostitution, transvestism, necrophilia, and even canine bestiality. Despite its laughable narration, this film is quite strong in tone, and is recommended for only the hardiest of viewers.